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cs440-acg/ext/openexr/OpenEXR/IlmImfUtil/ImfImageLevel.cpp

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+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2014, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+// 
+// All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// *       Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// *       Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// *       Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission. 
+// 
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+//----------------------------------------------------------------------------
+//
+//      class ImageLevel
+//
+//----------------------------------------------------------------------------
+
+#include "ImfImageLevel.h"
+#include <Iex.h>
+#include <cassert>
+
+using namespace IMATH_NAMESPACE;
+using namespace IEX_NAMESPACE;
+using namespace std;
+
+OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_ENTER
+
+
+ImageLevel::ImageLevel
+    (Image& image,
+     int xLevelNumber,
+     int yLevelNumber)
+:
+    _image (image),
+    _xLevelNumber (xLevelNumber),
+    _yLevelNumber (yLevelNumber),
+    _dataWindow (Box2i (V2i (0, 0), V2i (-1, -1)))
+{
+    // empty
+}
+
+
+ImageLevel::~ImageLevel ()
+{
+    // empty
+}
+
+
+void			
+ImageLevel::resize (const Imath::Box2i& dataWindow)
+{
+    if (dataWindow.max.x < dataWindow.min.x - 1||
+        dataWindow.max.y < dataWindow.min.y - 1)
+    {
+        THROW (ArgExc,
+               "Cannot reset data window for image level to "
+               "(" << dataWindow.min.x << ", " << dataWindow.min.y << ") - "
+               "(" << dataWindow.max.x << ", " << dataWindow.max.y << "). "
+               "The new data window is invalid.");
+    }
+
+    _dataWindow = dataWindow;
+}
+
+
+void
+ImageLevel::shiftPixels (int dx, int dy)
+{
+    _dataWindow.min.x += dx;
+    _dataWindow.min.y += dy;
+    _dataWindow.max.x += dx;
+    _dataWindow.max.y += dy;
+}
+
+
+void
+ImageLevel::throwChannelExists (const string& name) const
+{
+    THROW (ArgExc, "Cannot insert a new image channel with "
+                   "name \"" << name << "\" into an image level. "
+                   "A channel with the same name exists already.");
+}
+
+
+void
+ImageLevel::throwBadChannelName (const string& name) const
+{
+    THROW (ArgExc, "Attempt to access non-existent "
+                   "image channel \"" << name << "\".");
+}
+
+
+void
+ImageLevel::throwBadChannelNameOrType (const string& name) const
+{
+    THROW (ArgExc, "Image channel \"" << name << "\" does not exist "
+                   "or is not of the expected type.");
+}
+
+
+OPENEXR_IMF_INTERNAL_NAMESPACE_SOURCE_EXIT